Final Answer:
The contiguous leads refer to groups of electrocardiogram (ECG) leads that view the heart from specific angles. In the case of inferior leads, including II, III, and aVF, they provide a view of the inferior part of the heart. On the other hand, the lateral leads, comprising aVL, I, V5, and V6, offer a perspective on the lateral or left side of the heart. The septal-anterior leads, which consist of V1 to V4, focus on the septal and anterior regions.
Step-by-step explanation:
Contiguous leads in ECG interpretation are crucial for assessing different regions of the heart. The inferior leads (II, III, aVF) predominantly look at the inferior part of the heart. Lead II is situated on the left leg, providing a bipolar view with the right arm. Lead III is on the left leg, offering a bipolar view with the left arm. aVF is placed on the left foot, providing a unipolar view with the sum of the electrical forces directed downward and leftward. These leads collectively give insight into the inferior aspect of the heart.
In contrast, the lateral leads (aVL, I, V5, V6) provide a view of the left side of the heart. aVL is placed on the left arm, offering a bipolar view with the sum of the electrical forces directed upward and leftward. Lead I is located on the left arm, giving a bipolar view with the right arm. V5 and V6 are precordial or chest leads, focusing on the lateral aspect. Together, these leads contribute to understanding the left lateral side of the heart.
The septal-anterior leads (V1 to V4) are precordial leads that offer insight into the septal and anterior regions of the heart. V1 and V2 are more focused on the septum, while V3 and V4 transition towards the anterior part. These leads are essential in diagnosing conditions affecting the septum and anterior walls of the heart.
Complete Question:
Explain, laterally 2 contiguous leads-inferior leads --> II, III, aVF, lateral leads --> aVL, I, V5, V6 septal-anterior leads --> V1-V4.